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Electronic Principles

Electronic Principles
Holes are the minority carriers in which type of semiconductor?

None of these
Extrinsic
Intrinsic
p-type
n-type

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Electronic Principles
As the temperature increases, the current gain

None of these
increases
can be any of the above
contant
decreases

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Electronic Principles
Absolute Zero temperature equals

-276o C
0o C
None of these
-273o C
25o C

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Electronic Principles
Which one of the following statements regarding ac circuits is correct?

None of these
Current and voltages are in phase through a resistor
All of these
Current leads the voltage through a resistor
Current lags the voltage through a resistor

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Electronic Principles
Doubling the operating frequency of a purely capacitive circuit:

has no effect on the total circuit current
cuts the total current by one-half
doubles the amount of total current
thrice the amount of total current
None of these

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Electronic Principles
What is the total resistance of a series circuit that contains four resistors having values of 220W, 470W, 1W, and 1.2W?

844.5 Ohm
None of these
692.2 Ohm
1234 Ohm
3890 Ohm

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